STEEL Qeb ntawm ASTM A135 SPRINKLER Pipes
ASTM A135 yog tus qauv tseem ceeb rau hluav taws xob -kuj-welded steel yeeb nkab. Tus qauv npog ob qib ntawm cov yeeb nkab (Qib A & Qib B) uas yog npaj rau kev xa cov pa roj, vapor, dej, lossis lwm yam kua. Qhov tseem ceeb tshaj plaws ntawm tus txheej txheem yog qhov yuav tsum tau ua kom cov vuam seam ntawm Qib B yeeb nkab yuav tsum tau kho cua sov tom qab vuam los yog ua tiav nyob rau hauv xws li ib tug yam uas tsis muaj untempered martensite nyob. Qhov kev xav tau no yog qhov tseem ceeb rau kev ua kom lub zog thiab kav ntev ntawm cov yeeb nkab. ASTM A135 tsuas yog ib qho ntawm ntau tus qauv uas cov tuam txhab yuav tsum ua raws li txhawm rau tsim cov kav dej zoo - zoo uas yuav ua tau raws li lawv cov neeg siv khoom xav tau.
ASTM A135 SPRINKLER Kav hlau txais xov
Daim ntawv teev npe ntawm ASTM A135 tus qauv yeeb nkab qhov ntev yog muaj nyob rau hauv ASME B36.10M. ASTM A135 yog tus qauv Specification rau Hluav taws xob-Resistance-Welded Steel Pipe. Nws npog ob qib ntawm ERW steel yeeb nkab hauv qhov ntau thiab tsawg NPS 2 txog 30, nrog nominal (nruab nrab) phab ntsa tuab txog 12.7mm, suav nrog, thiab nyob rau hauv nominal ntau thiab tsawg NPS 3/4 txog 5 nrog lub nominal (nruab nrab) phab ntsa thickness ntawm 2.11mm txog 3.40mm, nyob ntawm qhov loj me. Qhov kev qhia tshwj xeeb no suav nrog hluav taws xob-tsis kam-welded kav uas haum rau flanging, dabtsi yog khoov, thiab lwm yam kev ua haujlwm zoo sib xws, thiab rau vuam. Qhov hluav taws xob tsis kam ntawm qhov vuam yog xam los ntawm kev faib cov arc ntev ntawm tus ntoo khaub lig-sectional cheeb tsam.
| N.D. | O.D. | SCH 10 | NWS 30/40 | ||||||||
| Phab ntsa tuab | NOMINAL WEIGHT | Phab ntsa tuab | NOMINAL WEIGHT | ||||||||
| (mm) | (inch) | (mm) | (inch) | (mm) | (inch) | (kg / mtr) | (lbs/ft) | (mm) | (inch) | (kg / mtr) | (lbs/ft) |
| 15 | 1/2 | 21.30 | 0.84 | -- | -- | -- | -- | 2.77 | 0.109 | 1.27 | 0.85 |
| 20 | 3/4 | 26.70 | 1.05 | 2.11 | 0.083 | 1.28 | 0.96 | 2.87 | 0.113 | 1.69 | 1.13 |
| 25 | 1 | 33.40 | 1.32 | 2.77 | 0.109 | 2.09 | 1.41 | 3.38 | 0.133 | 2.5 | 1.68 |
| 32 | 1-1/4 | 42.20 | 1.66 | 2.77 | 0.109 | 2.69 | 1.81 | 3.56 | 0.14 | 3.39 | 2.27 |
| 40 | 1-1/2 | 48.30 | 1.90 | 2.77 | 0.109 | 3.11 | 2.09 | 3.68 | 0.145 | 4.05 | 2.72 |
| 50 | 2 | 60.30 | 2.38 | 2.77 | 0.109 | 3.93 | 2.64 | 3.91 | 0.154 | 5.45 | 3.66 |
| 65 | 2-1/2 | 73.00 | 2.88 | 3.05 | 0.12 | 5.26 | 3.53 | 5.16 | 0.203 | 8.64 | 5.8 |
| 80 | 3 | 88.90 | 3.50 | 3.05 | 0.12 | 6.46 | 4.34 | 5.49 | 0.216 | 11.29 | 7.58 |
| 90 | 3-1/2 | 101.60 | 4.00 | 3.05 | 0.12 | 7.41 | 4.98 | 5.74 | 0.226 | 13.58 | 9.12 |
| 100 | 4 | 114.30 | 4.50 | 3.05 | 0.12 | 8.37 | 5.62 | 6.02 | 0.237 | 16.09 | 10.8 |
| 125 | 5 | 141.30 | 5.56 | 3.4 | 0.134 | 11.58 | 7.78 | 6.55 | 0.258 | 21.79 | 14.63 |
| 150 | 6 | 168.30 | 6.63 | 3.4 | 0.134 | 13.85 | 9.30 | 7.11 | 0.28 | 28.29 | 18.99 |
| 200 | 8 | 219.10 | 8.63 | 4.78 | 0.188 | 25.26 | 16.96 | 7.04 | 0.277 | 36.82 | 24.72 |
| 250 | 10 | 273.10 | 10.75 | 4.78 | 0.188 | 31.62 | 21.23 | 7.08 | 0.307 | 51.05 | 34.27 |
CHEMICAL COMPOSITION ntawm ASTM A135 PIPE
| Qib Steel | Cov pa roj carbon max | Manganese | Phosphorous | Sulfur |
| Qib A | 0.25 | 0.95 | 0.035 | 0.035 |
| Qib B | 0.3 | 1.2 | 0.035 | 0.035 |
Mechanical Properties ntawm ASTM A135 Pipes
| ASTM A 135 | Qib A | Qib B |
|
Tensile zog, min, ksi [MPa] |
48 [330] |
60 [415] |
|
Yield zog, min, ksi [MPa] |
30 [205] |
35 [240] |
|
Elongation, min,% |
35 | 30 |
Lub Hom Phiaj ntawm Painting ASTM A135 Hluav Taws Xob Hluav Taws Xob hauv Liab
Ib qho tseem ceeb tshaj plaws ntawm kev nyab xeeb hluav taws xob yog lub tshuab hluav taws xob. Cov tshuaj tua hluav taws yog tsim los muab cov dej tua hluav taws los yog tua hluav taws. Lawv feem ntau nyob rau ntawm lub ru tsev los yog cov pem teb saum toj kawg nkaus ntawm lub tsev, thiab cov kav dej uas nqa cov dej feem ntau yog pleev xim rau xim liab kom lawv pom tau yooj yim thaum muaj hluav taws. Cov tshuaj tua hluav taws feem ntau yog qhib los ntawm cua sov, thiab cov dej tawm los ntawm lub taub hau sprinkler uas nyob thoob plaws hauv lub tsev. Feem ntau, tsuas yog cov sprinklers ze tshaj plaws rau qhov hluav taws kub yuav qhib, uas txo cov dej puas tsuaj. Cov tshuaj tua hluav taws yog ib feem tseem ceeb ntawm txhua qhov kev nyab xeeb hluav taws, thiab lawv siv tuaj yeem pab cawm tib neeg txoj sia thiab khoom.
